Endless belt



April 21, 1925.

W. HOWARTH ENDLESS BELT Filed Dec. 22, 1922 //VVE/VTOR,'

7 WWMMWM' ATT'Y.

Patented Apr. 121, 1925i u g UNITED STATES PATENT OFFICE.

WILLIAM HOWARTI-I, F ROCHDALE, ENGLAND.

ENDLESS BELT.

Application filed December 22, 1922. Serial No. 608,516.

To all whom it may concern: an endless and jointless hand. Such a joint-Be it known that 1, WILLIAM Howlinrn, less band when out from a piece ofthin ilexia subject of the King'of Great Britain, rcble leather or othermaterial is particularlv siding at Marland, Rochdale, in the countysuitable for use with small diameter pulleys, 45 of Lancaster, England,have invented new for which purpose a joint or fastening in a and usefulImprovements in Endless Belts, belt is an objection, and a source ofweakof which the following is a specification. ness.

The invention relates to the manufacture The method is also applicablefor cutting of endless and jointless belts or hands from round leatherbelting, irom leather or the 50 pliable or flexible material suchleather in requisite thickness. The belt in this case, an economicalmanner whereby waste of maafter cutting, is rounded in the usual way.terial is reduced to a minimum. To effect The lengths of belt which maybe made in this object, according to the invention a accordance with myinvention are limited piece of leather or other desired material is onlyby the size or area of the piece of mate- 5 marked out in closely setcoils the coils being rial.

double the width of the belt required, com- WVhat I claim as myinvention and desire mencing with a loop at one corner of the mm tosecure by Letters Patent is 1-- terial and terminating with a loop at ornear '1. The method of forming an endless belt, the centre. The width ofthe strands of the which consists in cutting the material from 20 loopis the width of the belt and the double which the belt. is to be made toform a comwidth of the rest when out from the piece is pact coil, saidcoil being twice the desired divided along the centre from loop to loopto width of the belt and merging at its oppocorrespond with the width ofthe loop site ends into loops, the width of the matestrands and when socut will open out to rial of the loops being that of the desired 25 forman endless and jointless band. width of the belt, and cutting along thecen- The accompanying drawing illustrates the ter line of the 0011 fromloop to loop. i ti l l 2. The method or torming an endless belt,

A piece of leather or other material is used which consists in marking aseries oi? lines and is indicated at a. This piece a will be upon thematerial from which the belt is to marked out as shown. The full linesreprcbe cut to form a compact coil, said coil being sent the spiralcoils designed to fill as much twice the desired width of the belt andmergas possible the area 01'. the material a and ing at its oppositeends into loops, the width these full lines of the coil are double theof the material of the loops being that of width of the intended belt orband. The the desired width of the belt, cutting along ends of the coilterminate in loops, the proper the lines forming the coil, a line drawnalong width of the belt, and when the coil is cut the center of the coilfrom loop to loop, and out, as marked, from the piece a, there is leftcutting along said line. as waste the shaded part only. The cutting Intestimony whereof I have signed my is then continued from the loopsalong the name to this specification. dotted line to divide the materialforming the coils which can then be opened out into WILLIAM HOVVAlrlII-I.

